Patents by Inventor Lei Ma

Lei Ma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210371893
    Abstract: A cell-free protein synthesis method includes the following steps: (i) providing a multi-well plate, the multi-well plate includes a cover plate and a base provided with a plurality of wells. Each well is formed by one or more side walls, a bottom II and an opening, and the cover plate matches the opening; (ii) providing fluid to some of the wells; (iii) adding a biochemical factor and one or more of a template DNA, a template RNA; an additive, and a reaction cofactor into the fluid; or (iv) adding one or more of the template DNA, the template RNA, the additive, and the reaction cofactor to the fluid; (v) placing the cover plate on a top of the base to seal the openings of the wells; and (vi) subjecting the multi-well plate to incubation for a period of time.
    Type: Application
    Filed: August 7, 2020
    Publication date: December 2, 2021
    Applicant: Jiangsu Zhidian Biotechnology Co., Ltd.
    Inventors: Lei KAI, Kun HAN, Jiachang LIAN, Yi MA, Ke YUE
  • Patent number: 11191107
    Abstract: Embodiments of the present disclosure provide a backoff window adjustment method, and an apparatus. In downlink transmission, a base station obtains a trigger condition for adjusting a length of a backoff window on a first channel, and adjusts the length of the backoff window of the base station on the first channel according to the obtained trigger condition for adjusting the length of the backoff window on the first channel. In uplink transmission, a user equipment (UE) obtains a trigger condition for adjusting a length of a backoff window on a first channel, and adjusts the length of the backoff window of the UE on the first channel according to the obtained trigger condition for adjusting the length of the backoff window on the first channel.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: November 30, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Meiying Yang, Zuomin Wu, Sha Ma, Qiang Li, Lei Wan
  • Publication number: 20210361418
    Abstract: The present invention provides a transapical implantable mitral valve device, which includes an outer valve stent comprising an outer valve stent body that is composed of a plurality of first structure units arranged in the circumferential direction and an anchoring unit that is disposed on the outer valve stent body for anchoring the mitral valve device in a human body, at least one of an inner surface and an outer surface of the outer valve stent body being covered with an outer skirt; an inner valve stent disposed inside the outer valve stent and interconnected with the outer valve stent, a cavity being formed between the outer valve stent and the inner valve stent; and a valve leaflet structure disposed in the inner valve stent to form a prosthetic valve.
    Type: Application
    Filed: December 6, 2018
    Publication date: November 25, 2021
    Applicant: SINO MEDICAL SCIENCES TECHNOLOGY INC.
    Inventors: Zhonghua LI, Tianzhu LI, Jianxiang MA, Jinhong ZHAO, Lei MENG
  • Publication number: 20210357670
    Abstract: The disclosure relates to technology for monitoring driver attentiveness in a vehicle. A driver distraction system collects vehicle data and scene information from the vehicle while traveling on a route. The vehicle data and scene information are then processed to generate a reference heat map. At the same time, the driver distraction system may capture a gaze of a driver to track a gaze direction and duration of the driver while driving the vehicle on the route. The gaze direction and duration are processed to generate a driver gaze heat map. The driver gaze heat map and reference heat map are analyzed to determine a level of driver distraction of the driver in the vehicle, and a recommendation or warning is output to the driver of the vehicle according to the level of driver distraction.
    Type: Application
    Filed: June 3, 2021
    Publication date: November 18, 2021
    Inventors: Yitian Wu, Fatih Porikli, Lei Yang, Yuan Ma
  • Publication number: 20210360657
    Abstract: This application provides a communication method and a communication apparatus. A terminal device receives indication information sent by a network device by using higher layer signaling, receives, based on the indication information, a downlink data channel that is sent by the network device and that carries control information, and sends an uplink channel to the network device based on the control information. In this process, a step in which the network device sends a downlink PDCCH to the terminal device and a step in which the network device sends an uplink PDCCH to the terminal device are omitted, and closed-loop service communication is implemented through only one downlink data channel and one uplink channel. There are few signaling-related steps, thereby greatly ensuring service reliability and reducing a latency.
    Type: Application
    Filed: July 27, 2021
    Publication date: November 18, 2021
    Inventors: Ruixiang Ma, Lei Guan, Yuan Li
  • Publication number: 20210340956
    Abstract: A control system for limiting power turbine torque (QPT) of a gas turbine engine includes a controller including a processor and memory configured to control the gas turbine engine, the controller including an engine control module that provides an effector command signal to a gas generator of the gas turbine engine; a power turbine governor module that outputs a preliminary torque request (QPT_req_pre); and a power turbine torque (QPT) optimal limiter module that outputs a maximum torque topper (QPT_max) to limit a power turbine speed overshoot of the gas turbine engine; wherein the controller outputs a minimum value between the preliminary torque request (QPT_req_pre) and the maximum torque topper (QPT_max) to the engine control module.
    Type: Application
    Filed: July 15, 2021
    Publication date: November 4, 2021
    Applicant: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Chaohong Cai, Timothy J. Crowley, David Lei Ma, Richard P. Meisner
  • Patent number: 11165648
    Abstract: A device may obtain information concerning a potential network and may process the information concerning the potential network to determine a plurality of configuration parameters associated with the potential network. The device may determine, based on the plurality of configuration parameters, at least one network configuration profile. The device may generate, based on the at least one network configuration profile, a network configuration test plan and may cause one or more network devices to be tested according to the network configuration test plan.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: November 2, 2021
    Assignee: Juniper Networks, Inc.
    Inventors: Anil Kumar Bollineni, Ruiyan Shi, Rui Ma, Juguang Huang, Lei Wang, Yinghong Tong, Wei Zhao, Ming Lei
  • Publication number: 20210334431
    Abstract: The present invention provides a method for predicting prestress loss after concrete cracking along strand. Corrosion-induced cracking is modeled by the thick-wall cylinder theory, the expansive pressure is evaluated with the residual tensile stress by cracked concrete and confining stress by un-cracked concrete during concrete cracking process. Considering the effect of strand corrosion, the bond strength of corroded strand is evaluated from the contributions of adhesion stress, confinement stress and expansive pressure. A method for prestress loss in corroded pre-tensioned concrete member is proposed with the strain compatibility and force equilibrium equations, incorporating the coupling effects of concrete cracking and bond degradation. The present invention proposes a method for predicting the prestress loss after concrete cracking along strand, which can incorporate the coupling effects of concrete cracking and bond degradation.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 28, 2021
    Inventors: Lei Wang, Lizhao Dai, Jianren Zhang, Xuhui Zhang, Yafei Ma
  • Publication number: 20210337538
    Abstract: This application provides a method for multiplexing uplink control information, and relates to the wireless communications field. When a resource of a first uplink control channel that carries first HARQ-ACK information does not overlap a resource of a second uplink control channel that carries second HARQ-ACK information in time domain, but a resource of a third uplink control channel that carries an SR/CSI overlaps both the resource of the first uplink control channel and the resource of the second uplink control channel in time domain, a base station and UE determine, based on a format of the first uplink control channel, a format of the second uplink control channel, and a format of the third uplink control channel, that third HARQ-ACK information and first UCI are multiplexed for transmission, where the third HARQ-ACK information is the first HARQ-ACK information or the second HARQ-ACK information.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Shengyu Li, Lei Guan, Ruixiang Ma, Jiafeng Shao
  • Publication number: 20210337542
    Abstract: This application provides a wireless communication method and a communications apparatus, to implement semi-static codebook feedback at a sub-slot granularity. The method includes: determining a candidate opportunity set, where a quantity of candidate opportunities included in the candidate opportunity set is a maximum quantity of non-overlapping data transmission opportunities included in a data transmission opportunity set, the data transmission opportunity set corresponds to a first set, the first set includes one or more downlink sub-time units, and the one or more downlink sub-time units correspond to a target uplink sub-time unit; and sending or receiving feedback information in the target uplink sub-time unit, where the feedback information includes a hybrid automatic repeat request acknowledgement HARQ-ACK codebook corresponding to the candidate opportunity set.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Shengyu LI, Lei GUAN, Ruixiang MA
  • Patent number: 11159089
    Abstract: A resonant converter includes: an input power supply, a bleeder circuit, a multi-level switching network, a resonant unit, and a transformer. The input power supply is connected to the bleeder circuit, the multi-level switching network is connected to the bleeder circuit, a clamping middle point of the multi-level switching network is connected to a middle point of the bleeder circuit; one end of the resonant unit is connected to the output terminal of the multi-level switching network, and the other end of the resonant unit is connected to one end of a primary side of the transformer; and the multi-level switching network instructs the output terminal of the multi-level switching network to output a square wave voltage with different amplitudes, to serve as an input voltage of the resonant unit, where the input voltage is used to adjust a gain of the resonant converter.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: October 26, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yanzhong Zhang, Zheng Ma, Lei Shi, Dianbo Fu
  • Patent number: 11159571
    Abstract: An apparatus, method, and device for encapsulating heterogeneous functional equivalents are disclosed. The apparatus includes a redundancy controller, an input proxy, and an output proxy. In this application, a plurality of heterogeneous functional equivalents are encapsulated by an input proxy and an output proxy, so that the apparatus can support adaptation, normalization and dis-cooperation to cut a communication link employed by an attacker, such that it is difficult for the attacker to sniff and exploit unknown defects or backdoors, and a success rate of the attacker attacking an information system is reduced.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: October 26, 2021
    Assignees: Shanghai Hongzhen Information Science & Technology Co. Ltd., China National Digital Switching System Engineering & Technological R&D Center
    Inventors: Jiangxing Wu, Xinsheng Ji, Lei He, Peng Yi, Hailong Ma, Zheng Zhang, Xueming Si
  • Publication number: 20210322021
    Abstract: A disassembly-free and flushable clip applier includes: a fixing handle and a triggering handle, the fixing handle being hinged with the triggering handle, the fixing handle being provided with a locking key; an end of the cavity tube being provided with a mounting head which is configured for detachably connecting the ligating clip; a turning mechanism sleeved at the other end of the cavity tube and rotatably connected with the fixing handle through a rolling ball, the turning mechanism being provided with a flushing valve which is communicated with the cavity tube for flushing; and a thimble axially infixed into the cavity tube and reciprocating along an axial direction of the cavity tube. The clip applier does not need disassembly and reassembly during cleaning and disinfection and prevent a risk of accidental touching triggering when the ligating clip is being assembled and fails to reach a clipping position.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 21, 2021
    Applicant: HANGZHOU SUNSTONE TECHNOLOGY CO., LTD.
    Inventors: Lei Shi, Weijian Dai, Yanli Ma
  • Publication number: 20210328585
    Abstract: A device comprises, a first power source providing a first voltage, a second power source providing a second voltage less than the first voltage, a first bias voltage source providing a first bias voltage between the first voltage and the second voltage, a second bias voltage source providing a second bias voltage between the first voltage and the second voltage, the second bias voltage greater than or equal to the first bias voltage. The device also includes an output, a pull up network coupled in series between the first power source and the output pad including: a first gate coupled to the bias voltage source; and a second gate coupled to a signal that varies between first bias voltage and first power source. The device includes and a pull down network coupled between the output pad and second power source and including: a third gate coupled to the second bias voltage source; and a fourth gate coupled to a signal that varies between the second power source and the second bias voltage source.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Lei Pan, Zhen Tang, Miranda Ma
  • Publication number: 20210325190
    Abstract: A positioning method includes calculating, based on data that is of collection points at a road edge and that is collected by a radar, a feature of a road on which a terminal device is actually located, determining, from a plurality of candidate roads based on the feature of the road on which the terminal device is actually located and features of the plurality of candidate roads, a target road matching original positioning coordinates of the terminal device, and correcting the original positioning coordinates using the target road, to obtain corrected positioning coordinates.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 21, 2021
    Inventors: Minzhen Li, Lei Ma, Jun Wang
  • Publication number: 20210322983
    Abstract: A valve system for driving fluid and a method for using the same are provided. The valve system includes a fluid unit far away from the rotation center, a fluid unit close to the rotation center, a fluid transferring unit and a gas path pipeline for communicating the fluid unit close to the rotation center with the fluid unit far away from the rotation center. A rotation radius of a fluid outlet of the fluid unit far away from the rotation center is greater than that of a fluid inlet of the fluid unit close to the rotation center. The fluid outlet of the fluid unit far away from the rotation center is located at an end thereof away from the rotation center, and the fluid inlet of the fluid unit close to the rotation center is located at an end thereof close to the rotation center.
    Type: Application
    Filed: February 5, 2021
    Publication date: October 21, 2021
    Inventors: Liang Bai, Tengfei Guo, Lei Wang, Xinying Zhou, Juan Xin, Baolian Li, Li Ma, Libing Dong, Jing Cheng
  • Publication number: 20210322982
    Abstract: A sample extraction chip and a biological reaction device are disclosed according to the present disclosure. The sample extraction chip includes a chip body and a sample extraction module provided on the chip body, the sample extraction module includes a sample-loading lysis unit, a liquid release-control unit, an extraction unit, a liquid switch-control unit, a liquid collection unit and a sample collection unit, which are connected through flow channels in a sequence of extraction. The liquid release-control unit is configured to store and release liquid reagents, and the liquid switch-control unit is configured to switch between communication of the liquid collection unit and the extraction unit and communication of the sample collection unit and the extraction unit. The sample collection unit includes a front collection portion and a rear collection portion which are both in communication with the liquid switch-control unit.
    Type: Application
    Filed: December 14, 2020
    Publication date: October 21, 2021
    Inventors: Longtang Zheng, Lei Wang, Liang Bai, Xinying Zhou, Fei Wen, Yanan Wang, Xiang Chen, Tengfei Guo, Baolian Li, Li Ma, Jing Cheng
  • Publication number: 20210324926
    Abstract: The present invention discloses an electromagnetic braking system and control method, the system comprises a CCU, a braking cylinder, a push rod, an electromagnetic braking ring, an electromagnetic braking piston fixed to the push rod, a first shading plate and a second shading plate, a photoelectric sensor fixed near the push rod, and an electromagnetic braking control circuit. The control method includes following steps: initial estimating the braking distance l according to the current magnitude, electromagnetic force between the two electromagnetic coils and initial velocity v of the push rod, arranging a restoration distance ?l between the top dead center and the piston after braking, installing two shading plates and the photoelectric sensor; setting the distance between the two electromagnetic coils to L=l+?l when starting the braking.
    Type: Application
    Filed: March 8, 2019
    Publication date: October 21, 2021
    Applicant: Tianjin University
    Inventors: Jiaying PAN, Lei WANG, Haiqiao WEI, Gequn SHU, Changwen LIU, Guobin MA
  • Patent number: 11150159
    Abstract: An adaptive loading method for real-time hybrid simulation testing based on a space frame model. The system initial delay is controlled to be close to 0 before the loading of seismic wave by a dual compensation strategy for the initial delay based on the initial delay compensation and the adaptive loading segment, thereby solving the problem of insufficient estimation and compensation of the initial delay in the real-time hybrid simulation. In addition, the test substructure of the space frame model is equated as a test element, and the overall displacement response corresponding to the test substructure in the overall model is converted to the actual loading relative displacement of the test substructure by using the signal conversion module, thereby realizing the real-time loading of the large-scale spatial frame model with great rigidity.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: October 19, 2021
    Assignee: Xi'an University of Architecture and Technology
    Inventors: Tengfei Li, Mingzhou Su, Yan Sui, Lei Ma, Huanxue Gong
  • Publication number: 20210305329
    Abstract: The present disclosure provides a display panel including a plurality of pixel units. Each of the pixel units includes a substrate; a first electrode layer; a light emitting layer; a second electrode layer; and a color shift compensation layer located between the first electrode layer and the second electrode layer and on a light emitting side of the light emitting layer. The color shift compensation layer is configured to compensate for a color shift of light emitted from the light emitting layer at different viewing angles. One of the first electrode layer and the second electrode layer includes a reflective electrode layer, and the other of the first electrode layer and the second electrode layer is a transflective electrode layer. A display device including such a display panel, and a method for manufacturing such a display panel are also provided.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 30, 2021
    Inventors: Wenwen MA, Yanjun SUN, Lei LIU